Originally Posted by TheCheese
I don't see any advantage to either way, as long as you're getting to the wide stance after your split step.
This is my thinking. For myself, I find the moderate stance moving to a wider split easier to implement. I do not have very good static flexibility but do have a fairly decent dynamic flexibility -- it is rather difficult for me to assume a (static) wide stance but I find it relatively easy to take a step and then split wider (as shown in the Murray link I provided previously).